With the end of the 8th grade, Kostya is facing changes in his family: his father goes to a pregnant young "stepmother", and his mother hardly retains her dignity in the situation of a "civilized" divorce. Kostya writes poetry: "Straighten your back, break this cocoon, change the world, they are waiting for you outside the door", but he is shy to read them in public, until the network anonymous "Blackbird" gives him a few lessons in self-confidence. A romantic ride on a moped with a girl with whom Kostya is in love ends with someone else's broken car, and the romance ends with a broken heart. Now Kostya understands: girls come and go, but the real love between father and son is an enduring value.